I have tried this pdf macro by @telumire Open tiddler containing pdf (canonical_uri) at specific page? aka. Passing info to opening tiddler - #4 by telumire
It will create a button which when clicked takes to the corresponding page in the pdf.
And I used tiddlyclip pdf sub plug in to clip from pdf…buggyj/tiddlyclip-plugin · Discussions · GitHub .Search this GitHub discussion for pdf. I can provide the configuration I use of you are interested.